SAXIFRAGACEAE 



Mock Orange scattered over a wide range in the west. They are tall, 

 rather slender shrubs with narrow, rather thick leaves and handsome, 

 large, fragrant flowers. They arc frequently abundant in canyons 

 and on stoop slopes in the Juniper and Pinon belts and whore ac- 

 cessible to stock they are usually quite heavily grazed. These 

 bushes should be courted as ornamentals. Their extensive use in 

 any revogctation program, however, is open to question because of 

 their high susceptibility to the most serious disease attaching 

 Junipers in the southwest, namely, Gymno spo rang ia spocicsu . 



Fcndlora spp. There arc three species of Fcndleras in the 

 west and' "souQiwc'stT They range fro:'.- Colorado through hew hoxico, 

 Arizona and western Texas. '.That has been said of Fhiladclphus is 

 true of Fcndlora. The flowers arc handsome and the bushes are suit- 

 able for ornamentals. They are heavily browsed and likewise subject 

 to Gymno s porangia . 



*Ribes aure um or yellow flowering currant, is extremely widely 

 distributed throughout the west, occurring from the Kississippi to 

 the Pacific and from southern Canada into Old Jlexico. It has pro- 

 bably also been introduced into most parts of the world where it 

 formerly did not grow. It is a choice ornamental and the fruits 

 are frequently sold on the markets .as black currants. This, how- 

 ever, is a misnomer as this species is quite different from the 

 true black currant. In southern Arizona ana southern Hew Fexico 

 this shrub is rather rare but becomes abundant northward. It is 

 confined in our range to cool, moist canyons or to cooler altitudes. 

 ; «/here it has been planted in gardens extensively it lias escaped and 

 now is to be found along fence rows and as thickets in chicken yards 

 and orchards. In regions where it will grow it is an incomparable 

 erosion control plant but has the disadvantage of being extremely 

 susceptible to Pinon blister rust and white pine blister rust. For 

 this reason, it should never be planted in. association with these 

 trees . 



Ribes cereum, Squaw Currant or Squaw Bush, is somotim.es cal- 

 led the wild, red currant. For our consideration here we should in- 

 clude in this the closely related species, P. inobrians, as the two 

 arc very similar. The;.- are drought resistant shrubs, widespread 

 through, the mountains of the west. Since they are slow growing 

 and not particularly adapted to erosion control, as well as being 

 subject to the blister rust and another Pinon disease, Coleosporium 

 ribioola, they should not be considered in any revegetation program. 



Ribes 1 opto nt hum is the most common wild gooseberry on dry 

 bottoms and hillsides throughout southern Colorado and adjacent 



